Portion of a shoe upper



FIG. 1 is a side view of a portion of a shoe upper showing my new design;

FIG. 2 is a front perspective view thereof; and,

FIG. 3 is a rear perspective view thereof.

The uneven broken lines immediately adjacent to the photographic portion represent unclaimed boundaries of the design. The uneven broken lines within the photographic portions, and the uneven broken line showing of the remainder of the shoe are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 